initial import of debian package

1 files changed, 45 insertions, 0 deletions

diff --git a/zmq/utils/strtypes.py b/zmq/utils/strtypes.py
new file mode 100644
index 0000000..548410d
--- /dev/null
+++ b/zmq/utils/strtypes.py
@@ -0,0 +1,45 @@
+"""Declare basic string types unambiguously for various Python versions.
+
+Authors
+-------
+* MinRK
+"""
+
+# Copyright (C) PyZMQ Developers
+# Distributed under the terms of the Modified BSD License.
+
+import sys
+
+if sys.version_info[0] >= 3:
+    bytes = bytes
+    unicode = str
+    basestring = (bytes, unicode)
+else:
+    unicode = unicode
+    bytes = str
+    basestring = basestring
+
+def cast_bytes(s, encoding='utf8', errors='strict'):
+    """cast unicode or bytes to bytes"""
+    if isinstance(s, bytes):
+        return s
+    elif isinstance(s, unicode):
+        return s.encode(encoding, errors)
+    else:
+        raise TypeError("Expected unicode or bytes, got %r" % s)
+
+def cast_unicode(s, encoding='utf8', errors='strict'):
+    """cast bytes or unicode to unicode"""
+    if isinstance(s, bytes):
+        return s.decode(encoding, errors)
+    elif isinstance(s, unicode):
+        return s
+    else:
+        raise TypeError("Expected unicode or bytes, got %r" % s)
+
+# give short 'b' alias for cast_bytes, so that we can use fake b('stuff')
+# to simulate b'stuff'
+b = asbytes = cast_bytes
+u = cast_unicode
+
+__all__ = ['asbytes', 'bytes', 'unicode', 'basestring', 'b', 'u', 'cast_bytes', 'cast_unicode']